They say the human and wheeled traffic in a busy city center could provide enough energy to light the streets of an entire town or power the heating system for a hospital or school.

他们说，在繁华大城市的中心，人群和过往车辆可提供足够的能量为整个城镇的街道照明或者为一个医院或学校提供供暖系统的动力。

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As you've read, it's during deep sleep that your body undergoes major physiological changes to repair your muscles, power up your immune system and replenish your energy.

正如你已经阅读的一样，在深层睡眠之中，你的身体正经历着主要的生理变化来修复你的肌肉，增强你的免疫系统和补充你的能量。

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These hexagonal transparent areas not only let in extra light to the Forvision's cabin but also capture the sun's energy to power the car's interior lighting and climate system.

这些六边形的透明区域并不仅仅增加了进入车体的光线，还可以吸收太阳能以维持车内照明和温控系统的正常运作。

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And Petrov, whose Friday was punctuated by spins, blamed his struggles on adapting to the Kers energy recovery and power-boost system, of which Heidfeld has experience from his time at BMW Sauber in 2009.

BBC: Nick Heidfeld heads Fernando Alonso at his Renault test

Rather than letting the heat escape, a cogeneration plant uses the excess energy to power a heating and cooling system.

FORBES: The Most Efficient Power Plants

Unfortunately, the majority of our colleges and universities lack degree programs focused on energy, and the U.S. power engineering education system is on the decline.

FORBES: Racing for Clean-Tech Jobs: Why America Needs an Energy Education Strategy